OK, I admit, I missed totally on the soldering course, OK! However, I do manage to do a decent work on most connections, i.e. it works, and looks OK. However, grounding the pots seems to be...impossible!?! At least, I have never produced a joint that I was satisfied with. Can somebody give a crash course here? Or, better yet, a real tutorial like Wilsers defret thingy - that would be smashing. I may add that I use a pencil tip solder pen of rather high quality, but without direct temperature control.